Find your next tech and IT Job or contract Java Developer (Kotlin, Groovy...)

The Java developer is a web and application development professional specialized in using Java, a server-oriented programming language. They are also called: Java programmer, Java programmer-analyst, Java software development engineer. This IT technician analyzes the specifications provided by the client to identify a technical solution that meets their technical and functional requirements point by point. They are then responsible for custom designing all or part of the computer program in Java. Then comes the trial and testing phase of the applications. Once the program is operational, they can proceed with writing technical documentation and user guides. The Java developer can progress towards supervisory positions, project manager, IT technical manager or even a commercial career.

Your search returns 88 results.
Permanent

Job Vacancy
Software Engineer

Nexus Jobs Limited
Published on

£60k-90k
London, England, United Kingdom
Software Engineer Our Client is looking for a Software Engineer with at least of 5 years of progressively complex experience in a directly related area, during which both professional and technical capabilities have been clearly demonstrated. Your expertise must include design and development experience with various relevant Microsoft platforms, tools, technologies, patterns, and techniques related to MSFT suites, Azure tools, integration, and data is required. Experience with industry/domains like pharmaceutical, finance, HR, sales, marketing, and manufacturing is highly preferred. Experience with healthcare industry regulations, data security and compliance standards (e.g. GDPR), and EDI standards (e.g. FHIR, HL7), etc. is very valuable. Developer certifications of Azure and/or Microsoft suite technologies is a big plus. A degree in computer science, software engineering, or a related field is required. Technical skills: In-depth knowledge and experience in programming, administrating, configuring, and integrating using/with MS Office/MS Office 365 suite, SharePoint Online, Power Apps/Power Automate, GitHub, MS Teams, etc. In-depth knowledge & development experience using Azure integration tools like Data factory, Logic Apps, etc. Along with knowledge of utilizing Azure SQL Server, Data lake, etc. In-depth knowledge & experience using Visual Studio, with one of the programming languages: C#/Java/JavaScript/Python, and PowerShell. Thorough understanding of the fundamental architecture of the cloud and on-prem MSFT Suite. Solid fundamentals and thorough understanding of exception handling principles and production/operational support solutions (alerts, dashboards, runbooks, etc.) Experience working with Azure DevOps and CI/CD pipeline. Knowledge and some experience of using Serverless, SOAP, XML, REST, JSON, EDI, XSLT, etc. Knowledge and some development experience using MS SQL Server (SSIS, T-SQL, Stored procedures, Functions, Views, Queries, Datatype conversions, etc.). Experience working with APIs, Postman/SOAPUI tools, MS D365, ServiceNow, Azure Analytics tools, Azure Synapse, Azure BYOD & Data verse, Azure DevOps, Informatica, BI tools, etc. is a big plus. General business skills: Excellent communication to translate and explain business requirements to technology & vice-versa. Analytical & methodical mindset with a problem-solving attitude is extremely important for the success of this role. Concise written, verbal, and presentation skills. Must be a team player who can earn a team’s respect quickly. Ability to take initiative and be innovative. Ability to complete projects and achieve results in an ambiguous work environment. The Client is based in Trumbull CT USA – this is a remote role ideally from London UK. The salary will be in the range £60K - £90K. Please send your CV to us in Word format along with your salary and availability.
Fixed term

Job Vacancy
Technical Architect

LA International Computer Consultants Ltd
Published on

6 months
United Kingdom
* Significant experience as a technical or solution architect in complex digital or enterprise environments. * Strong software engineering foundation, with practical knowledge of modern application architectures (e.g., microservices, APIs, distributed systems). * Proven ability to design and document architectures using visual modelling techniques such as C4, UML, and data flow diagrams. * Hands-on experience with at least one major cloud provider, ideally AWS, including Infrastructure as Code, platform services, networking, and security controls. * Deep understanding of secure and resilient system design, including authentication patterns, threat modelling, performance considerations, and observability. * Familiarity with Ruby, Python, or Java, and modern development practices such as CI/CD, TDD, and containerisation. * Experience guiding technology decisions, evaluating options, and influencing senior stakeholders. * Strong understanding of data modelling, integration approaches, API design, messaging patterns, and interoperability challenges. * Exceptional communication skills, with the ability to simplify complex topics and build consensus across diverse groups. * Ability to work across the full delivery lifecycle, from discovery through implementation and service transition. Desirable Skills & Experience * Experience with enterprise ERP platforms (e.g., Oracle E-Business Suite). * Knowledge of UK government digital service standards, architecture frameworks, and assurance processes. * Understanding of Domain-Driven Design or event-driven architectural approaches. * Exposure to SRE, platform engineering, or infrastructure architecture disciplines. * Experience contributing to architectural communities of practice or governance forums. * Prior consultancy experience working across multiple product teams or client environments. Personal Attributes * Strong systems thinking and analytical capability, with the ability to understand complex environments quickly. * Comfortable operating in ambiguous or fast-changing environments while maintaining architectural clarity. * Collaborative, empathetic, and committed to building trust with stakeholders at all levels. * Dedicated to continuous learning, technical curiosity, and staying current with emerging technologies. * Pragmatic and outcome-focused, balancing long-term architectural quality with short-term delivery constraints. ________________________________________ Technical Environment The assignment covers a diverse mix of modern cloud-native services and legacy enterprise platforms. Exposure to some of the following areas would be beneficial: * Modern languages and frameworks including Ruby, Java, and Python * AWS cloud services, Infrastructure as Code, platform as a service tooling * Engineering practices such as DDD, TDD, CI/CD, automated testing and Git workflows * Multi-tier platform strategies including centralised data and business logic layers * Enterprise Oracle software including ERP components * Mac-based development environments and public GitHub repositories ________________________________________ Our Values We are committed to a culture built on purpose, transparency, collaboration, and respect. We welcome applicants from all backgrounds and support an inclusive environment where people can thrive. ________________________________________ ACTIVE SC CLEARANCE REQUIRED Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 10 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
Permanent

Job Vacancy
FPGA / Firmware Engineer

Rise Technical Recruitment Ltd
Published on

£55k-60k
United Kingdom
FPGA / Firmware Engineer Guildford £55,000 - £60,000 + Bonus + Excellent Company Benefits Package Are you an experienced FPGA / Firmware Engineer looking to take full ownership of cutting-edge digital architectures that convert precise physical measurements into high-speed, high-integrity data for global scientific applications? This is an exciting opportunity to join a highly specialised engineering environment where you will design and implement FPGA-based systems at the core of advanced analytical instrumentation. Working closely with multidisciplinary teams, you will play a key role in developing next-generation technology used across food science, pharmaceuticals, and materials research. In this role, you will be responsible for FPGA design, embedded firmware development, and real-time system integration. You will work hands-on with hardware, developing scalable architectures and ensuring accurate, low-latency data acquisition from precision sensors. The position offers strong technical ownership and the chance to contribute directly to innovative product development. The ideal candidate will have a solid background in FPGA development using VHDL or Verilog, along with experience in embedded systems and real-time data processing. You will be a methodical problem solver, comfortable working in a lab-based environment, and confident collaborating across engineering disciplines. The Role: FPGA design and development using VHDL and Verilog Real-time firmware development for embedded systems and processor cores Integration of sensors, ADCs, DACs, and communication protocols (SPI, I²C, UART) Development of digital signal processing pipelines and data acquisition systems Hands-on debugging and validation using lab equipment Implementation of high-speed data transfer interfaces such as USB, Ethernet, or PCIe The Person: Good years' of experience in FPGA/firmware development Strong knowledge of digital electronics and signal integrity Experience with FPGA toolchains such as Vivado, Quartus, or Libero Understanding of control systems such as PID for motion or electromechanical systems Degree in Electronic Engineering, Mechatronics, Robotics, or similar Desirable: Experience with ARM SoC (e.g. Zynq), C/C++ or Python Reference Number: BBBH275499 Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.
Contractor

Contractor job
Lead Full Stack Engineer - Open Banking - Remote - OUTSIDE IR35

LA International Computer Consultants Ltd
Published on

6 months
£550-650
England, United Kingdom
Lead Technology Full Stack Engineer - 100% Remote - OUTSIDE IR35 You will lead a team of engineers, working across both front-end and back-end technologies while collaborating with architecture, cloud, product, and data science teams. The position is ideal for a hands-on technical leader who enjoys building scalable products and mentoring high-performing engineering teams. Lead Technology Full Stack Engineer Responsibilities Own end-to-end technical design and delivery across React, TypeScript, Vite, and Golang platforms. Define API standards, service architecture, and application design patterns. Lead engineering design reviews, code reviews, and technical decision making. Establish development standards, testing frameworks, and quality controls. Design and maintain CI/CD pipelines, containerisation, and cloud deployment processes. Collaborate with architects and data science teams to integrate AI and machine learning capabilities. Work closely with product and UX teams to deliver intuitive customer experiences. Provide technical governance, engineering assurance, and risk management across delivery programmes. Lead Technology Full Stack Engineer Skills and Experience Minimum 5 years' full stack engineering experience. Strong expertise in TypeScript, React, and modern front-end development. Strong Golang development experience including microservices and API development. Experience designing cloud-native SaaS platforms within AWS, Azure, or GCP environments. Must have knowledge of Open Banking, PSD2, payment processing, or financial services integrations. Proven experience leading engineering teams and mentoring developers. Strong understanding of Agile software delivery practices. Experience with gRPC, GraphQL, AI integration, event-driven architectures, or real-time processing desirable. To apply, please send your CV by pressing the apply button. Due to high volume of applications, only shortlisted CVs will be contacted.
Permanent

Job Vacancy
Senior Software Engineer Architect

Nexus Jobs Limited
Published on

Trumbull, Connecticut, United States of America
Senior Software Engineer Architect – Trumbull CT USA Our Client is a Global organisation who are looking to recruit a Senior Software Engineer with Architect expertise. You must have at least 7 years proven track record of developing complex software coupled with Architect skills. Technical architecting, hands-on programming, problem-solving, PoC building, and owning, building, and reviewing thorough documentation. Work closely with business champions, vendors, project managers, system analysts, QA, compliance, regulations, security, operations, and infrastructure teams to create and/or review integration-focused project documents to cover all the relevant aspects including data, tools, security, compliance, and operations requirements. Develop/Program proofs-of-concept. Support developers in problem-solving. Conduct code-reviews. A bachelor's degree in computer science, software engineering, or a related field is required. Master's is preferred. A minimum of seven (7) years of progressively complex experience in a directly related area, during which both professional and technical capabilities have been clearly demonstrated. A minimum of seven (7) years of architecting, design and development experience with various relevant Microsoft platforms (predominantly with Azure), tools, technologies, patterns, and techniques related to integration and data is required. A minimum of three (3) years of experience must be as an architect or solution designer with relevant job functions and technologies is required. Hands-on programming experience throughout is a must. Experience with healthcare industry regulations, data security and compliance standards (e.g. GDPR), and EDI standards (e.g. FHIR, HL7), etc. is very much preferred. Experience with industry/domains like pharmaceutical, finance, HR, sales, marketing, and manufacturing is valuable. Architecture certification like TOGAF or similar, and Developer certifications of Azure and/or Microsoft suite technologies is a big plus. Technical skills: In-depth knowledge and thorough experience in working with a variety of integration patterns is very important. In-depth knowledge and thorough experience in programming, configuring, and/or integrating using/with Azure integration tools like Data factory, LogicApps, Functions, API Management, Data catalog, WebApps, Integration service environment, configuring monitoring & diagnostics, etc., and connectivity & security configurations (certificates, encryptions, etc.). In-depth knowledge and experience with Azure data storage (SQL Server, Data lake, Synapse, etc.) & access tools, APIs, cloud connectivity, and ETL processes. In-depth knowledge & experience using Visual Studio, with one of the programming languages C#/Java/JavaScript/Python, PowerShell, and Postman, SOAPUI or similar tools. In-depth knowledge and thorough experience of using Serverless, SOAP, XML, REST, JSON, EDI, XSLT, Async/Sync, Request/Response, Service Bus, Publish/Subscribe, Batch/Real-time, Scheduling, Event triggers, etc. In-depth knowledge and development experience using MS SQL Server (SSIS, T-SQL, Stored procedures, Functions, Views, Queries, Datatype conversions, etc.). Knowledge and experience of MS Office/MS Office 365 suite, SharePoint Online, Power Apps, GitHub, MS Teams, etc. Thorough understanding of the fundamental architecture of the cloud and on-prem MSFT Suite (e.g. Share point) and Integration platforms architecture (e.g. BizTalk, MuleSoft, or similar), and version control methods. Solid fundamentals and thorough understanding of exception handling principles and production/operational support solutions (alerts, dashboards, runbooks, etc.) Thorough understanding and practice/experience of designing performance tuned architecture, investigating performance issues and fixing and tuning the systems Experience working with Azure DevOps and CI/CD pipeline. Experience working with MS D365, ServiceNow, Azure Analytics tools, Azure Data lake, Azure Synapse, Azure BYOD & Data verse Experience or knowledge of Informatica, BI tools, etc. is a big plus. The position will be based in either Trumbull CT or Livingston NJ USA. The salary for this role will be in the range $100K - $135K. Please send your CV to us in Word format along with your salary and availability.
Permanent

Job Vacancy
Senior Software Engineer with C# .net Fixed Income FX

Nexus Jobs Limited
Published on

£50k-75k
City of London, England, United Kingdom
C# .NET Software Developer with FX and Fixed Income Our Client is a niche boutique broker specialising in FX. They are looking to recruit a C# .NET Software Developer with at least 3 to 5 years proven track record of developing with C# .NET. The Client would like meet candidates ideally with some understanding Trading Floor projects to include Fixed Income, Risk Management, Swap Options and FX. You need to be resilient as you will be working closely with traders and developing financial trading systems so an understanding of FX instruments would be very useful. The Company is a fast growing dynamic brokerage firm, specialising in currency options and interest rate swaps. They are seeking a talented technologist to join the London team. You will be working in a fast paced, delivery focused environment where you will get the opportunity to make a genuine impact on the business rather than just ‘making up the numbers’. Initially reporting to the CTO, the successful candidate will become a key member of the global team. There will be a large amount of autonomy in the role, giving the candidate the opportunity to showcase their development talents, Responsibilities :- Re-architecting and building the in-house middle office platform and integrating with a new trading platform. Developing pricing toolsets Integrating to external reporting/tradeflow and pricing APIs. Maintaining the company’s daily operation on the existing platforms. Essential skills :- Minimum 3 to 5 years experience of Microsoft web technologies ( C#, Core MVC ) Relational database experience (SQL Server) Proactively able to build relationships with stakeholders:- sales, brokers, middle office, external vendors. Ability to produce clean, well-written, fully tested production ready software. Desirable skills :- Knowledge of the FIX protocol Knowledge of FX trade processing Basic knowledge of Foreign exchange products (vanilla/exotic options, fx cash) ( training will be given) Qualifications: Computer Science related degree preferred At least 3 years experience in a comparable development role. The Client is based in the City of London. The salary for this role will be £50K - £75K. Please do send your CV to us in Word format along with your salary and availability.
Permanent

Job Vacancy
6611 - Higher Data Scientist - Marine FTA

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Published on
Github
PostGIS
PostgreSQL

Ukraine

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Frequently asked questions about working as a Java Developer (Kotlin, Groovy...)

What is the role of a Java Developer (Kotlin, Groovy...)

The Java developer is a computer specialist who focuses on designing software and websites. As the name implies, they have Java programming language down pat! Passionate and versatile, the Java developer must possess solid technical skills and some essential qualities to provide their client with a customized IT solution.

How much does a Java Developer (Kotlin, Groovy...) charge

The mastered frameworks, the company's sector, its location and the technical issues to be solved are all criteria that affect the Java developer's salary. Nevertheless, their daily rate is relatively high, even for a beginner. The latter earns an average of 483 euros per day. Their salary will be around £40K.

What is the definition of a Java Developer (Kotlin, Groovy...)

The Java developer creates applications at the client's request using their preferred language: Java. For this purpose, they must comply with the requirements provided in the specifications. They develop the application, then manage the testing phase as well as maintenance and update planning

What type of mission can a Java Developer (Kotlin, Groovy...) handle

The tasks generally assigned to a Java developer are: • Definition of client needs; • Application programming; • Development of website structure; • Writing explanatory notes so that the written code lines are understandable by other stakeholders; • Adding new functionalities and improving the performance of an existing application; • Performing unit tests and integration tests; • Technical support; • Updating existing code.

What are the main skills of a Java Developer (Kotlin, Groovy...)

Knowledge of Java language must be complemented by knowledge of: • The J2EE development platform; • Other programming languages; • Oracle and SQL databases; • Tools and frameworks such as Spring, Spring boot, React, Angular, Hibernate, AWS, GWT, Struts or Docker; • Algorithms; • Security standards and procedures to combat cyberattacks; • The business environment (market, services, customers). Those who wish to work as Java developers must also master English.

What is the ideal profile for a Java Developer (Kotlin, Groovy...)

In addition to the diploma and technical skills, recruiters require future Java developers to be: • Rigorous and precise in writing code; • Creative; • Good listeners; • Able to work in an agile environment; • Flexible and available; • Able to communicate and explain their knowledge to non-technical people; • Curious, as computer programs and languages are constantly evolving. A strong sense of analysis and organization is also required!
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